package com.ztgf.file.utils;
import java.awt.AlphaComposite;
import java.awt.Color;
import java.awt.Graphics2D;
import java.awt.RenderingHints;
import java.awt.Transparency;
import java.awt.image.BufferedImage;
import java.io.File;
import java.io.FileOutputStream;
import java.io.InputStream;
import java.io.OutputStream;

import java.util.ArrayList;
import java.util.List;

import javax.imageio.ImageIO;

public class TestImage {

    public static void main(String[] args) {

        List<String> list = new ArrayList<String>();
        list.add("中铁工服MALL");

        // TODO png的图片后缀一定是png的
        markImageByText(list, "/Users/mxli/Desktop/dhh1dWAJk5iAaVjrAA3VcscEnCQ58.jpeg", "/Users/mxli/Desktop/wm.jpeg", 12, Color.red, "png");
    }

    /**
     * 给图片添加水印文字、可设置水印文字的旋转角度
     * @param logoText 要写入的文字
     * @param srcImgPath 源图片路径
     * @param newImagePath 新图片路径
     * @param fontsize 字体大小
     * @param color  字体颜色
     * @param formaName 图片后缀
     */
    public static void markImageByText(List<String> list, String srcImgPath,String newImagePath,Integer fontsize,Color color,String formaName) {
        InputStream is = null;
        OutputStream os = null;
        try {
            // 1、源图片
            java.awt.Image srcImg = ImageIO.read(new File(srcImgPath));
            BufferedImage buffImg = new BufferedImage(srcImg.getWidth(null),srcImg.getHeight(null), BufferedImage.TYPE_INT_RGB);
            // 2、得到画笔对象
            Graphics2D g = buffImg.createGraphics();
            buffImg = g.getDeviceConfiguration().createCompatibleImage(srcImg.getWidth(null), srcImg.getHeight(null), Transparency.TRANSLUCENT);
            g.dispose();
            g = buffImg.createGraphics();
            // 3、设置对线段的锯齿状边缘处理
            g.setRenderingHint(RenderingHints.KEY_INTERPOLATION,RenderingHints.VALUE_INTERPOLATION_BILINEAR);
            // 4、把原图画到新画板上
            g.drawImage(srcImg.getScaledInstance(srcImg.getWidth(null), srcImg.getHeight(null), java.awt.Image.SCALE_SMOOTH), 0, 0, null);
            // 5、设置水印文字颜色
            g.setColor(color);
            // 6、设置水印文字Font
            g.setFont(new java.awt.Font("微软雅黑", java.awt.Font.BOLD, fontsize));
            // 7、设置水印文字透明度  必须要用AlphaComposite.SRC_OVER
//            g.setComposite(AlphaComposite.getInstance(AlphaComposite.SRC_ATOP));
            g.setComposite(AlphaComposite.getInstance(AlphaComposite.SRC_OVER));
            // 8、第一参数->设置的内容，后面两个参数->文字在图片上的坐标位置(x,y)
            g.drawString(list.get(0),  3 , 25);
//            g.drawString(list.get(1),  58 ,25);
//            g.drawString(list.get(2),  113 , 25);
//            g.drawString(list.get(3),  3 , 55);
//            g.drawString(list.get(4),  58 , 55);
//            g.drawString(list.get(5),  113 , 55);
            // 9、释放资源
            g.dispose();
            // 10、生成图片
            os = new FileOutputStream(newImagePath);
            ImageIO.write(buffImg, formaName, os);
        } catch (Exception e) {
            e.printStackTrace();
        } finally {
            try {
                if (null != is)
                    is.close();
            } catch (Exception e) {
                e.printStackTrace();
            }
            try {
                if (null != os)
                    os.close();
            } catch (Exception e) {
                e.printStackTrace();
            }
        }
    }


}

